The Oxandrolone hormone does not carry any estrogenic related side effects. It does not aromatize and cannot lead to gynecomastia or water retention due to increases in estrogen levels. It further carries no progestin related activity, which again supports no estrogenic related side effects. Due to water retention being impossible with this steroid, this will decrease the risk of high blood pressure. Excess water retention can promote high blood pressure. Some steroids that do not aromatize can lead to high blood pressure, such as Trenbolone , but Anavar is rarely associated with this trait.
For the female athlete we can make an exception as this can be a fairly decent bulking agent; as you recall women are more sensitive to the hormone. No, it will more than likely not put on piles of lean tissue but it can with enough calories present in the diet bring about a nice lean tissue gain. Further, as water weight is of no concern with this steroid every last pound of tissue gained will be that of 100% pure lean muscle mass. As was with cutting Anavar dosages 10mg per day will be the place to start; if the woman really wants to put on some size 20mg may prove to be fine here but she needs to have a good understanding of how her body reacts first before attempting such a dose. Further, as Anavar dosages are so low for most women, while the hormone isnt cheap, because they need so little it proves to be much more efficient on a price to benefit ratio.